Smoothing machine for glassware



Feb. 19, 1924. 1,483,884

F. L. HITCHCOCK SMOOTHING MACHINE FOR GLASSWARE Filed Jan. 30, 1923ATTORNEYS.

Patented Feb. 19, 1924.

UNITED STATES PATENT OFFICE.

FORREST ,L. HITCHCOCK, F, INDIANAPOLIfi INDIANA, AssIGNon ro THEMARIETTA MANUF CTURIN TcOMPnNY, or INDIANAPOLIS, INDIANA, .ACORPORATION.

sivroo'rnrivo MACHINE FOR GLASSWARE.

Application filed January 30, 1923. Serial No. 615,825.

T 0 all whom it may concern Be it known that I, Fonnnsrr L. HITCH- cooK,a citizen of the United States, and a resident of Indianapolis, countyof Marion, and State of Indiana, have invented a certain new and usefulSmoothing Machine for Glassware; and I do hereby declare that.

the following is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, in which like numerals refer tolike parts.

This invention relates to 'a machine for smoothing the edges of plateglass and similar glass products.

The object of the invention is directed to the simplification andreduction of parts of smoothing machines of this type, and particularlyto reducing the number of pulleys used in connection therewith.

The particular feature of the invention relates to the construction ofthe machine wherein individual driving pulleys are eliminated, and thepower is transmitted to the smoothing band directly through thesmoothing wheel.

The full nature of this invention will be understood from theaccompanying drawings and the following description and claims. I

In the drawings Fig. 1 is a plan view of I the grinding machine. Fig. 2is a front ele- 'vation thereof.

In the drawings there is shown a smoothing machine having a centralframe comprising the standardslO and cross barsll. Mounted on the crossbars 11 intermediate the upright standards there is a. bearing block 12in which a central vertical shaft 13 is mounted at its upper end.Thelower end of the shaft 13 is mounted in a suitable bearing in thehorizontal. frame 14 supported be tween the standards 10. Keyed on theshaft 13 there is a driven pulley 15 and two driving pulleys 16 and 17.The block 12 is provided with pulleys 18 and 19 over which the cables 20and 21 respectively pass. Said cables are attached at one end to theweights 22 and at the other end to the'sliding carriages 23, which areslid-ably mounted upon the rods 11. Mounted on the carriages 23 thereare tension pulleys 24 adapted to revolve about a vertical axis.

On each side of the above mentioned frame there are supporting frames 25and 26. Between said first mentioned frame and the frame 26 there is adriving motor 47 in position todrive a belt 48, 'throughwhich power istransmitted to the driving pulley l5. Vertically and centrallypositio-nedin the frames 25 and 26 there are driving shafts 27 and 28mountedin suitable vertical bearings therein, upon which there are keyedthe driving pulleys 29 and 30 respectively. The lower end of the shafts27 and 28 are supported in the bearing members 31 and 32 mounted in thehorizontal frame supports 33, the upper ends of said shafts extendinginto the bearing blocks 34.

Keyed to the shafts 27 and 28 respectively,

there are smoothing wheels 35 and 36 which are driven by the shafts 27and 28, and which in turn drive the smoothing belts 37 and 38. Saidwheels '35 and 36 are supported by the bearing blocks 3 1 on suitableroller hearings or the like. I

The wheels 35 and 36 are provided with annular cushions '39 and 40secured to their periphery and formed ofrubber Or other suitablematerial of sufiicient thickness to give a cushion effect thereto. Thesmoothing band 37 is formed of fabric having a suitable coarse surfacefor smoothing the edges of glass plates which may be brought incontacttherewith adjacent the periphery of the cushioned wheel 35. The belt 38is provided with a similar smoothing surface of finer material forsmoothing the edge of the plate glass upon its being brought in contacttherewith. This arrangement will permit the plate of glass supportedupon a suitable portable table to be rolled thereon to a positionwherein the edge will first contact with the band 37. It will then bemoved along with its edge held againstsai'd band and the periphery ofthe cushioned wheel 35 so that. it will be smoothed by the rapidmovement of the band 37. The portable table will then be'rolled alongthe band 37 until it comes in contact with the band 38, which will causeits edges to be smoothed to a finer degree in the same manner. The bands37 and 38 pass about their respective pulleys 24: which will at alltimes maintain said bands under proper tension through the medium of theweights22.

The invention claimed is:

1. A smoothing machine comprising av central frame having a pair oftension pulleys thereon, smoothing wheels rotatably mounted on each sideof said frame, smoothing hands mounted about the periphery of saidwheels [LIlClgtllQ adjacent tension pulley,.

a shaft keye d'to each of said Wheels for rotating the same and meansfor driving said shafts.

2. A smoothing machine comp-rising a central frame having a pair oftension pulleys thereon, smoothing Wheels rotatably mounted on each sideof said frame, smoothing bands mounted about the periphery of sa dWlIGGlS ZUICl means for drlvmg and rotating said hands directly throughsaid Wheels.

'3. A smoothin machine com )risin h I h framemembers, a pair of abuttingWheels rotatably supported in horizontal position on "said framemembers, a-Lpair of tension I have hereunto af-

